<p>first works!————id is {{id}}</p>

<nav>
  <ul>
    <li><a routerLink="child-a" routerLinkActive="active">Child A</a></li>
    <li><a routerLink="child-b" routerLinkActive="active">Child B</a></li>
  </ul>
</nav>

<router-outlet></router-outlet>
